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          Institute: MPI für Gravitationsphysik     Collection: Astrophysical Relativity     Display Documents



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ID: 334597.0, MPI für Gravitationsphysik / Astrophysical Relativity
Excision without excision
Authors:Brown, Duncan A.; Sarbach, Olivier; Schnetter, Erik; Tiglio, Manuel; Diener, Peter; Hawke, Ian; Pollney, Denis
Date of Publication (YYYY-MM-DD):2007-10
Title of Journal:Physical Review D
Volume:76
Issue / Number:8
Sequence Number of Article:081503
Review Status:not specified
Audience:Not Specified
Abstract / Description:To stuff a black hole. We analyze and apply an alternative to black hole excision based on smoothing the interior of black holes with arbitrary initial data, and solving the vacuum Einstein evolution equations everywhere. By deriving the constraint propagation system for our hyperbolic formulation of the BSSN evolution system we rigorously prove that the constraints propagate causally and so any constraint violations introduced inside the black holes cannot affect the exterior spacetime. We present evolutions of Cook-Pfeiffer binary black hole initial configurations showing that these techniques appear to work robustly for generic data. We also present evidence from spherically symmetric evolutions that for the gauge conditions used the same stationary end-state is approached irrespective of the choice of initial data and smoothing procedure.
External Publication Status:published
Document Type:Article
Communicated by:Bernhard F. Schutz
Affiliations:MPI für Gravitationsphysik/Astrophysical Relativity
Identifiers:ISI:000250621400004 [ID No:1]
ISSN:1550-7998 [ID No:2]
DOI:10.1103/PhysRevD.76.081503
URL:http://link.aps.org/abstract/PRD/v76/e081503
LOCALID:arXiv:0707.3101
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